Andersen Group Inc. is a leading provider of independent tax, valuation and financial advisory services to individuals and family offices, businesses and institutional clients in the United States. The company delivers comprehensive tax and financial services through an integrated platform designed to solve complex client matters involving multigenerational wealth, charitable giving, trust and estate planning, and investment fund structures. Andersen Group Inc. has strategically expanded its service offerings to build a multidimensional advisory firm capable of addressing clients’ most complex tax and financial challenges. The firm operates without providing audit or related financial statement attestation services, allowing it to remain independent of associated regulatory constraints that apply to traditional audit firms in the United States and internationally.

Andersen Group Inc. generates revenue through its specialized service offerings, which include private client services, business tax services, alternative investment funds services, and valuation services. The company serves a diverse client base across the United States and internationally, comprising individuals, family offices, businesses, and institutional clients such as investment funds and corporations. Revenue is derived from professional fees charged for tax advisory, compliance, valuation, and consulting services delivered by its team of over 2,300 professionals as of December 31, 2025. The firm’s revenue model relies on long-term client relationships, with over 70% of its 2025 revenue coming from client groups engaged for more than three years, reflecting high retention and recurring service demand.

Andersen Group Inc. operates through the following segments:

• Private Client Services: This segment provides comprehensive tax and financial services for individuals and families, addressing complex matters involving multigenerational wealth, charitable giving, and trust and estate planning. Services include income tax planning, trust and estate planning, charitable giving, family office advisory, tax compliance, outsourced accounting, and wealth management advisory. The Andersen brand is leveraged in this segment to build trust with high-net-worth clients seeking personalized, discreet advisory support.

• Business Tax Services: This segment offers scalable, integrated tax-related consulting and compliance services for businesses, including mergers and acquisitions transaction support, state and local tax (SALT) services, international tax services (ITS), and tax technology automation (TTA). The segment helps clients manage tax planning, compliance, reporting, and risk management across domestic and cross-border operations. Andersen Group Inc. uses proprietary methodologies and technology platforms under the Andersen brand to deliver efficient and accurate tax solutions.

• Alternative Investment Funds: This segment delivers comprehensive tax and financial services for investment funds, including family offices, funds of funds, hedge funds, private equity funds, venture capital funds, and real estate investment trusts. Services cover fund structuring, private placement memoranda, fund administration, accounting, and compliance throughout the fund lifecycle. The firm applies its specialized expertise in alternative investments to support clients navigating complex regulatory and tax environments.

• Valuation Services: This segment provides independent valuation expertise to help clients navigate tax laws and meet financial reporting requirements. Services include tax valuation, financial reporting valuations, and fixed asset and real estate valuation, with specialized capabilities in machinery, equipment, intangible assets, and goodwill. Andersen Group Inc. uses its valuation practice to support transactions, litigation, estate planning, and regulatory compliance, reinforced by the firm’s reputation for technical rigor and independence.

Andersen Group Inc. holds a strong position in the competitive tax and financial advisory industry, differentiating itself from large global firms such as Deloitte & Touche LLP, Ernst & Young LLP, KPMG LLP, and PricewaterhouseCoopers LLP through its independence from audit services and deep specialization in tax and valuation. The company competes effectively against mid-tier firms like Grant Thornton Advisors LLC and RSM US LLP, as well as boutique advisory firms, by leveraging its globally recognized Andersen brand, which conveys a legacy of professionalism and integrity. Its competitive advantages include a highly experienced workforce, long client tenure, low attrition, and integration of technology such as artificial intelligence to enhance service delivery and scalability. The firm’s affiliation with Andersen Global provides access to a network of over 50,000 professionals across 180 countries, extending its reach without compromising its independent U. S. operations.

Andersen Group Inc. serves a broad and diverse client base across the United States and internationally, including individuals, wealthy families, family offices, businesses, and institutional clients such as investment funds and corporations. The firm’s clients span industries including financial services, consumer products, healthcare, hospitality, manufacturing, pharmaceutical and biotech, private equity, real estate, technology, and venture capital. As of December 31, 2025, Andersen Group Inc. had provided services to approximately 12,350 client groups across the United States, with no single client or small group of clients contributing disproportionately to revenue, as evidenced by the top ten client groups accounting for only about 5% of total revenue in 2025. This diversified base supports business resilience and reduces reliance on any single industry or client segment.